I started some building works in the summer and for the most part it completed in September. Further works are due in 2019.
However, my neighbour has now claimed that my single-storey extension (only to one side of his property) has caused damage/ and or subsidence. I had party wall agreements in place and a separate structural engineer and architect.
All three professionals have said that my works would not have caused any structural damage, given that the cracks that he has seen are throughout his building, not just on the side where my extension and his main building share the same wall. The neighbour that shares the same wall as the extension has not experienced any cracks (or has not highlighted any to me).
Several builders that he has brought in say that it looks like its settlement cracks.
Given it all this, it has just occurred to me that I did not notify my building insurance. Should a claim be put through (as we share the freehold), will my lack of disclosure (oversight rather than intentional cause issue), and should I advise them now?
Neighbour is now looking to get in a structural surveyor. He has also determined that he has a broken drain to one side of his property that he is looking to have fixed - which is probably more of a cause of any movement.
Has any one experienced similar and provide some guidance/thoughts?
TIA.